{"id":1023,"date":"2023-05-28T02:28:29","date_gmt":"2023-05-27T18:28:29","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1023"},"modified":"2023-05-28T02:28:29","modified_gmt":"2023-05-27T18:28:29","slug":"spring-boot%e5%ae%9e%e7%8e%b0%e5%88%86%e7%89%87%e4%b8%8a%e4%bc%a0%e3%80%81%e6%96%ad%e7%82%b9%e7%bb%ad%e4%bc%a0%e3%80%81%e5%a4%a7%e6%96%87%e4%bb%b6%e6%9e%81%e9%80%9f%e7%a7%92%e4%bc%a0","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/spring-boot\/spring-boot%e5%ae%9e%e7%8e%b0%e5%88%86%e7%89%87%e4%b8%8a%e4%bc%a0%e3%80%81%e6%96%ad%e7%82%b9%e7%bb%ad%e4%bc%a0%e3%80%81%e5%a4%a7%e6%96%87%e4%bb%b6%e6%9e%81%e9%80%9f%e7%a7%92%e4%bc%a0\/","title":{"rendered":"Spring Boot\u5b9e\u73b0\u5206\u7247\u4e0a\u4f20\u3001\u65ad\u70b9\u7eed\u4f20\u3001\u5927\u6587\u4ef6\u6781\u901f\u79d2\u4f20"},"content":{"rendered":"
\n

\u539f\u6587\uff1a<\/span>blog.csdn.ne<\/span>t\/zhiyikeji\/article\/details\/128242775<\/span><\/p>\n

<\/mp-common-profile><\/section>\n

\u6587\u4ef6\u4e0a\u4f20\u662f\u4e00\u4e2a\u8001\u751f\u5e38\u8c08\u7684\u8bdd\u9898\u4e86\uff0c\u5728\u6587\u4ef6\u76f8\u5bf9\u6bd4\u8f83\u5c0f\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u76f4\u63a5\u628a\u6587\u4ef6\u8f6c\u5316\u4e3a\u5b57\u8282\u6d41\u4e0a\u4f20\u5230\u670d\u52a1\u5668\uff0c\u4f46\u5728\u6587\u4ef6\u6bd4\u8f83\u5927\u7684\u60c5\u51b5\u4e0b\uff0c\u7528\u666e\u901a\u7684\u65b9\u5f0f\u8fdb\u884c\u4e0a\u4f20\uff0c\u8fd9\u53ef\u4e0d\u662f\u4e00\u4e2a\u597d\u7684\u529e\u6cd5\uff0c\u6bd5\u7adf\u5f88\u5c11\u6709\u4eba\u4f1a\u5fcd\u53d7\uff0c\u5f53\u6587\u4ef6\u4e0a\u4f20\u5230\u4e00\u534a\u4e2d\u65ad\u540e\uff0c\u7ee7\u7eed\u4e0a\u4f20\u5374\u53ea\u80fd\u91cd\u5934\u5f00\u59cb\u4e0a\u4f20\uff0c\u8fd9\u79cd\u8ba9\u4eba\u4e0d\u723d\u7684\u4f53\u9a8c\u3002\u90a3\u6709\u6ca1\u6709\u6bd4\u8f83\u597d\u7684\u4e0a\u4f20\u4f53\u9a8c\u5462\uff0c\u7b54\u6848\u6709\u7684\uff0c\u5c31\u662f\u4e0b\u8fb9\u8981\u4ecb\u7ecd\u7684\u51e0\u79cd\u4e0a\u4f20\u65b9\u5f0f<\/p>\n

1.\u5206\u7247\u4e0a\u4f20<\/h2>\n

1.1 \u4ec0\u4e48\u662f\u5206\u7247\u4e0a\u4f20<\/h3>\n

\u5206\u7247\u4e0a\u4f20\uff0c\u5c31\u662f\u5c06\u6240\u8981\u4e0a\u4f20\u7684\u6587\u4ef6\uff0c\u6309\u7167\u4e00\u5b9a\u7684\u5927\u5c0f\uff0c\u5c06\u6574\u4e2a\u6587\u4ef6\u5206\u9694\u6210\u591a\u4e2a\u6570\u636e\u5757\uff08\u6211\u4eec\u79f0\u4e4b\u4e3aPart\uff09\u6765\u8fdb\u884c\u5206\u522b\u4e0a\u4f20\uff0c\u4e0a\u4f20\u5b8c\u4e4b\u540e\u518d\u7531\u670d\u52a1\u7aef\u5bf9\u6240\u6709\u4e0a\u4f20\u7684\u6587\u4ef6\u8fdb\u884c\u6c47\u603b\u6574\u5408\u6210\u539f\u59cb\u7684\u6587\u4ef6\u3002<\/p>\n

1.2 \u5206\u7247\u4e0a\u4f20\u7684\u573a\u666f<\/h3>\n
    \n
  1. \n
    \u5927\u6587\u4ef6\u4e0a\u4f20<\/section>\n<\/li>\n
  2. \n
    \u7f51\u7edc\u73af\u5883\u73af\u5883\u4e0d\u597d\uff0c\u5b58\u5728\u9700\u8981\u91cd\u4f20\u98ce\u9669\u7684\u573a\u666f<\/section>\n<\/li>\n<\/ol>\n

    2.\u65ad\u70b9\u7eed\u4f20<\/h2>\n

    2.1 \u4ec0\u4e48\u662f\u65ad\u70b9\u7eed\u4f20<\/h3>\n

    \u65ad\u70b9\u7eed\u4f20\u662f\u5728\u4e0b\u8f7d\u6216\u4e0a\u4f20\u65f6\uff0c\u5c06\u4e0b\u8f7d\u6216\u4e0a\u4f20\u4efb\u52a1\uff08\u4e00\u4e2a\u6587\u4ef6\u6216\u4e00\u4e2a\u538b\u7f29\u5305\uff09\u4eba\u4e3a\u7684\u5212\u5206\u4e3a\u51e0\u4e2a\u90e8\u5206\uff0c\u6bcf\u4e00\u4e2a\u90e8\u5206\u91c7\u7528\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u4e0a\u4f20\u6216\u4e0b\u8f7d\uff0c\u5982\u679c\u78b0\u5230\u7f51\u7edc\u6545\u969c\uff0c\u53ef\u4ee5\u4ece\u5df2\u7ecf\u4e0a\u4f20\u6216\u4e0b\u8f7d\u7684\u90e8\u5206\u5f00\u59cb\u7ee7\u7eed\u4e0a\u4f20\u6216\u8005\u4e0b\u8f7d\u672a\u5b8c\u6210\u7684\u90e8\u5206\uff0c\u800c\u6ca1\u6709\u5fc5\u8981\u4ece\u5934\u5f00\u59cb\u4e0a\u4f20\u6216\u8005\u4e0b\u8f7d\u3002<\/p>\n

    \n

    \u672c\u6587\u7684\u65ad\u70b9\u7eed\u4f20\u4e3b\u8981\u662f\u9488\u5bf9\u65ad\u70b9\u4e0a\u4f20\u573a\u666f\u3002<\/p>\n<\/blockquote>\n

    2.2 \u5e94\u7528\u573a\u666f<\/h3>\n

    \u65ad\u70b9\u7eed\u4f20\u53ef\u4ee5\u770b\u6210\u662f\u5206\u7247\u4e0a\u4f20\u7684\u4e00\u4e2a\u884d\u751f\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528\u5206\u7247\u4e0a\u4f20\u7684\u573a\u666f\uff0c\u90fd\u53ef\u4ee5\u4f7f\u7528\u65ad\u70b9\u7eed\u4f20\u3002<\/p>\n

    2.3 \u5b9e\u73b0\u65ad\u70b9\u7eed\u4f20\u7684\u6838\u5fc3\u903b\u8f91<\/h3>\n

    \u5728\u5206\u7247\u4e0a\u4f20\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u56e0\u4e3a\u7cfb\u7edf\u5d29\u6e83\u6216\u8005\u7f51\u7edc\u4e2d\u65ad\u7b49\u5f02\u5e38\u56e0\u7d20\u5bfc\u81f4\u4e0a\u4f20\u4e2d\u65ad\uff0c\u8fd9\u65f6\u5019\u5ba2\u6237\u7aef\u9700\u8981\u8bb0\u5f55\u4e0a\u4f20\u7684\u8fdb\u5ea6\u3002\u5728\u4e4b\u540e\u652f\u6301\u518d\u6b21\u4e0a\u4f20\u65f6\uff0c\u53ef\u4ee5\u7ee7\u7eed\u4ece\u4e0a\u6b21\u4e0a\u4f20\u4e2d\u65ad\u7684\u5730\u65b9\u8fdb\u884c\u7ee7\u7eed\u4e0a\u4f20\u3002<\/p>\n

    \u4e3a\u4e86\u907f\u514d\u5ba2\u6237\u7aef\u5728\u4e0a\u4f20\u4e4b\u540e\u7684\u8fdb\u5ea6\u6570\u636e\u88ab\u5220\u9664\u800c\u5bfc\u81f4\u91cd\u65b0\u5f00\u59cb\u4ece\u5934\u4e0a\u4f20\u7684\u95ee\u9898\uff0c\u670d\u52a1\u7aef\u4e5f\u53ef\u4ee5\u63d0\u4f9b\u76f8\u5e94\u7684\u63a5\u53e3\u4fbf\u4e8e\u5ba2\u6237\u7aef\u5bf9\u5df2\u7ecf\u4e0a\u4f20\u7684\u5206\u7247\u6570\u636e\u8fdb\u884c\u67e5\u8be2\uff0c\u4ece\u800c\u4f7f\u5ba2\u6237\u7aef\u77e5\u9053\u5df2\u7ecf\u4e0a\u4f20\u7684\u5206\u7247\u6570\u636e\uff0c\u4ece\u800c\u4ece\u4e0b\u4e00\u4e2a\u5206\u7247\u6570\u636e\u5f00\u59cb\u7ee7\u7eed\u4e0a\u4f20\u3002<\/p>\n

    \u6574\u4f53\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n

      \n
    1. \n
      \u524d\u7aef\u5c06\u6587\u4ef6\u5b89\u88c5\u767e\u5206\u6bd4\u8fdb\u884c\u8ba1\u7b97,\u6bcf\u6b21\u4e0a\u4f20\u6587\u4ef6\u7684\u767e\u5206\u4e4b\u4e00(\u6587\u4ef6\u5206\u7247),\u7ed9\u6587\u4ef6\u5206\u7247\u505a\u4e0a\u5e8f\u53f7<\/section>\n<\/li>\n
    2. \n
      \u540e\u7aef\u5c06\u524d\u7aef\u6bcf\u6b21\u4e0a\u4f20\u7684\u6587\u4ef6,\u653e\u5165\u5230\u7f13\u5b58\u76ee\u5f55<\/section>\n<\/li>\n
    3. \n
      \u7b49\u5f85\u524d\u7aef\u5c06\u5168\u90e8\u7684\u6587\u4ef6\u5185\u5bb9\u90fd\u4e0a\u4f20\u5b8c\u6bd5\u540e,\u53d1\u9001\u4e00\u4e2a\u5408\u5e76\u8bf7\u6c42<\/section>\n<\/li>\n
    4. \n
      \u540e\u7aef\u4f7f\u7528RandomAccessFile<\/code>\u8fdb\u591a\u7ebf\u7a0b\u8bfb\u53d6\u6240\u6709\u7684\u5206\u7247\u6587\u4ef6,\u4e00\u4e2a\u7ebf\u7a0b\u4e00\u4e2a\u5206\u7247<\/section>\n<\/li>\n
    5. \n
      \u540e\u7aef\u6bcf\u4e2a\u7ebf\u7a0b\u6309\u7167\u5e8f\u53f7\u5c06\u5206\u7247\u7684\u6587\u4ef6\u5199\u5165\u5230\u76ee\u6807\u6587\u4ef6\u4e2d<\/section>\n<\/li>\n
    6. \n
      \u5728\u4e0a\u4f20\u6587\u4ef6\u7684\u8fc7\u7a0b\u4e2d\u53d1\u751f\u65ad\u7f51\u4e86\u6216\u8005\u624b\u52a8\u6682\u505c\u4e86,\u4e0b\u6b21\u4e0a\u4f20\u7684\u65f6\u5019\u53d1\u9001\u7eed\u4f20\u8bf7\u6c42,\u8ba9\u540e\u7aef\u5220\u9664\u6700\u540e\u4e00\u4e2a\u5206\u7247<\/section>\n<\/li>\n
    7. \n
      \u524d\u7aef\u91cd\u65b0\u53d1\u9001\u4e0a\u6b21\u7684\u6587\u4ef6\u5206\u7247<\/section>\n<\/li>\n<\/ol>\n

      2.4 \u5b9e\u73b0\u6d41\u7a0b\u6b65\u9aa4<\/h3>\n

      \u65b9\u6848\u4e00\uff0c\u5e38\u89c4\u6b65\u9aa4<\/h4>\n
        \n
      1. \n
        \u5c06\u9700\u8981\u4e0a\u4f20\u7684\u6587\u4ef6\u6309\u7167\u4e00\u5b9a\u7684\u5206\u5272\u89c4\u5219\uff0c\u5206\u5272\u6210\u76f8\u540c\u5927\u5c0f\u7684\u6570\u636e\u5757\uff1b<\/section>\n<\/li>\n
      2. \n
        \u521d\u59cb\u5316\u4e00\u4e2a\u5206\u7247\u4e0a\u4f20\u4efb\u52a1\uff0c\u8fd4\u56de\u672c\u6b21\u5206\u7247\u4e0a\u4f20\u552f\u4e00\u6807\u8bc6\uff1b<\/section>\n<\/li>\n
      3. \n
        \u6309\u7167\u4e00\u5b9a\u7684\u7b56\u7565\uff08\u4e32\u884c\u6216\u5e76\u884c\uff09\u53d1\u9001\u5404\u4e2a\u5206\u7247\u6570\u636e\u5757\uff1b<\/section>\n<\/li>\n
      4. \n
        \u53d1\u9001\u5b8c\u6210\u540e\uff0c\u670d\u52a1\u7aef\u6839\u636e\u5224\u65ad\u6570\u636e\u4e0a\u4f20\u662f\u5426\u5b8c\u6574\uff0c\u5982\u679c\u5b8c\u6574\uff0c\u5219\u8fdb\u884c\u6570\u636e\u5757\u5408\u6210\u5f97\u5230\u539f\u59cb\u6587\u4ef6\u3002<\/section>\n<\/li>\n<\/ol>\n

        \u65b9\u6848\u4e8c\u3001\u672c\u6587\u5b9e\u73b0\u7684\u6b65\u9aa4<\/h4>\n
          \n
        1. \n
          \u524d\u7aef\uff08\u5ba2\u6237\u7aef\uff09\u9700\u8981\u6839\u636e\u56fa\u5b9a\u5927\u5c0f\u5bf9\u6587\u4ef6\u8fdb\u884c\u5206\u7247\uff0c\u8bf7\u6c42\u540e\u7aef\uff08\u670d\u52a1\u7aef\uff09\u65f6\u8981\u5e26\u4e0a\u5206\u7247\u5e8f\u53f7\u548c\u5927\u5c0f\u3002<\/section>\n<\/li>\n
        2. \n
          \u670d\u52a1\u7aef\u521b\u5efaconf\u6587\u4ef6\u7528\u6765\u8bb0\u5f55\u5206\u5757\u4f4d\u7f6e\uff0cconf\u6587\u4ef6\u957f\u5ea6\u4e3a\u603b\u5206\u7247\u6570\uff0c\u6bcf\u4e0a\u4f20\u4e00\u4e2a\u5206\u5757\u5373\u5411conf\u6587\u4ef6\u4e2d\u5199\u5165\u4e00\u4e2a127\uff0c\u90a3\u4e48\u6ca1\u4e0a\u4f20\u7684\u4f4d\u7f6e\u5c31\u662f\u9ed8\u8ba4\u76840,\u5df2\u4e0a\u4f20\u7684\u5c31\u662fByte.MAX_VALUE 127<\/code>\uff08\u8fd9\u6b65\u662f\u5b9e\u73b0\u65ad\u70b9\u7eed\u4f20\u548c\u79d2\u4f20\u7684\u6838\u5fc3\u6b65\u9aa4\uff09<\/section>\n<\/li>\n
        3. \n
          \u670d\u52a1\u5668\u6309\u7167\u8bf7\u6c42\u6570\u636e\u4e2d\u7ed9\u7684\u5206\u7247\u5e8f\u53f7\u548c\u6bcf\u7247\u5206\u5757\u5927\u5c0f\uff08\u5206\u7247\u5927\u5c0f\u662f\u56fa\u5b9a\u4e14\u4e00\u6837\u7684\uff09\u7b97\u51fa\u5f00\u59cb\u4f4d\u7f6e\uff0c\u4e0e\u8bfb\u53d6\u5230\u7684\u6587\u4ef6\u7247\u6bb5\u6570\u636e\uff0c\u5199\u5165\u6587\u4ef6\u3002<\/section>\n<\/li>\n<\/ol>\n

          \u6574\u4f53\u7684\u5b9e\u73b0\u6d41\u7a0b\u5982\u4e0b\uff1a

          3.\u5206\u7247\u4e0a\u4f20\/\u65ad\u70b9\u4e0a\u4f20\u4ee3\u7801\u5b9e\u73b0<\/h2>\n

          3.1 \u524d\u7aef\u5b9e\u73b0<\/h3>\n

          \u524d\u7aef\u7684File\u5bf9\u8c61\u662f\u7279\u6b8a\u7c7b\u578b\u7684Blob\uff0c\u4e14\u53ef\u4ee5\u7528\u5728\u4efb\u610f\u7684Blob\u7c7b\u578b\u7684\u4e0a\u4e0b\u6587\u4e2d\u3002<\/p>\n

          \u5c31\u662f\u8bf4\u80fd\u591f\u5904\u7406Blob\u5bf9\u8c61\u7684\u65b9\u6cd5\u4e5f\u80fd\u5904\u7406File\u5bf9\u8c61\u3002\u5728Blob\u7684\u65b9\u6cd5\u91cc\u6709\u6709\u4e00\u4e2aSlice\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u5b8c\u6210\u5207\u7247\u3002<\/p>\n

          \u6838\u5fc3\u4ee3\u7801\uff1a<\/p>\n

          <\/span>fileMD5 (files) {
            \/\/ \u8ba1\u7b97\u6587\u4ef6md5<\/span>
            return<\/span> new<\/span>  Promise((resolve,reject) => {
              const<\/span> fileReader = new<\/span> FileReader();
              const<\/span> piece = Math.ceil(files.size \/ this<\/span>.pieceSize);
              const<\/span> nextPiece = () => {
                let start = currentPieces * this<\/span>.pieceSize;
                let end = start * this<\/span>.pieceSize >= files.size ? files.size : start + this<\/span>.pieceSize;
                fileReader.readAsArrayBuffer(files.slice(start,end));
              };

              let currentPieces = 0<\/span>;
              fileReader.onload = (event) => {
                let e = window.event || event;
                this<\/span>.spark.append(e.target.result);
                currentPieces++
                if<\/span> (currentPieces < piece) {
                  nextPiece()
                } else<\/span> {
                  resolve({fileName: files.name, fileMd5: this<\/span>.spark.end()})
                }
              }
              \/\/ fileReader.onerror = (err => { reject(err) })<\/span>
              nextPiece()
            })
          }
          <\/code><\/pre>\n
          \u5f53\u7136\u5982\u679c\u6211\u4eec\u662fvue\u9879\u76ee\u7684\u8bdd\u8fd8\u6709\u66f4\u597d\u7684\u9009\u62e9\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5f00\u6e90\u7684\u6846\u67b6\uff0c\u672c\u6587\u63a8\u8350\u4f7f\u7528vue-simple-uploader <\/code>\u5b9e\u73b0\u6587\u4ef6\u5206\u7247\u4e0a\u4f20\u3001\u65ad\u70b9\u7eed\u4f20\u53ca\u79d2\u4f20\u3002<\/p>\n
          \u5f53\u7136\u6211\u4eec\u4e5f\u53ef\u4ee5\u91c7\u7528\u767e\u5ea6\u63d0\u4f9b\u7684webuploader<\/code>\u7684\u63d2\u4ef6\uff0c\u8fdb\u884c\u5206\u7247\u3002<\/p>\n
          \u64cd\u4f5c\u65b9\u5f0f\u4e5f\u7279\u522b\u7b80\u5355\uff0c\u76f4\u63a5\u6309\u7167\u5b98\u65b9\u6587\u6863\u7ed9\u51fa\u7684\u64cd\u4f5c\u8fdb\u884c\u5373\u53ef\u3002<\/p>\n
          webuploader\u5b98\u65b9\u6587\u6863\uff1a<\/p>\n
            \n
          • \n
            http:\/\/fex.baidu.com\/webuploader\/getting-started.html<\/section>\n<\/li>\n<\/ul>\n
            3.2 \u540e\u7aef\u5199\u5165\u6587\u4ef6<\/h3>\n
            \u540e\u7aef\u7528\u4e24\u79cd\u65b9\u5f0f\u5b9e\u73b0\u6587\u4ef6\u5199\u5165\uff1a<\/p>\n
              \n
            • \n
              RandomAccessFile<\/section>\n<\/li>\n
            • \n
              MappedByteBuffer<\/section>\n<\/li>\n<\/ul>\n
              \u5728\u5411\u4e0b\u5b66\u4e60\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u7b80\u5355\u4e86\u89e3\u4e00\u4e0b\u8fd9\u4e24\u4e2a\u7c7b\u7684\u4f7f\u7528<\/p>\n
              RandomAccessFile<\/h4>\n
              Java\u9664\u4e86File\u7c7b\u4e4b\u5916\uff0c\u8fd8\u63d0\u4f9b\u4e86\u4e13\u95e8\u5904\u7406\u6587\u4ef6\u7684\u7c7b\uff0c\u5373RandomAccessFile<\/code>\uff08\u968f\u673a\u8bbf\u95ee\u6587\u4ef6\uff09\u7c7b\u3002<\/p>\n
              \u8be5\u7c7b\u662fJava\u8bed\u8a00\u4e2d\u529f\u80fd\u6700\u4e3a\u4e30\u5bcc\u7684\u6587\u4ef6\u8bbf\u95ee\u7c7b\uff0c\u5b83\u63d0\u4f9b\u4e86\u4f17\u591a\u7684\u6587\u4ef6\u8bbf\u95ee\u65b9\u6cd5\u3002RandomAccessFile<\/code>\u7c7b\u652f\u6301\u201c\u968f\u673a\u8bbf\u95ee\u201d\u65b9\u5f0f\uff0c\u8fd9\u91cc\u201c\u968f\u673a\u201d\u662f\u6307\u53ef\u4ee5\u8df3\u8f6c\u5230\u6587\u4ef6\u7684\u4efb\u610f\u4f4d\u7f6e\u5904\u8bfb\u5199\u6570\u636e\u3002\u5728\u8bbf\u95ee\u4e00\u4e2a\u6587\u4ef6\u7684\u65f6\u5019\uff0c\u4e0d\u5fc5\u628a\u6587\u4ef6\u4ece\u5934\u8bfb\u5230\u5c3e\uff0c\u800c\u662f\u5e0c\u671b\u50cf\u8bbf\u95ee\u4e00\u4e2a\u6570\u636e\u5e93\u4e00\u6837\u201c\u968f\u5fc3\u6240\u6b32\u201d\u5730\u8bbf\u95ee\u4e00\u4e2a\u6587\u4ef6\u7684\u67d0\u4e2a\u90e8\u5206\uff0c\u8fd9\u65f6\u4f7f\u7528RandomAccessFile<\/code>\u7c7b\u5c31\u662f\u6700\u4f73\u9009\u62e9\u3002<\/p>\n
              RandomAccessFile<\/code>\u5bf9\u8c61\u7c7b\u6709\u4e2a\u4f4d\u7f6e\u6307\u793a\u5668\uff0c\u6307\u5411\u5f53\u524d\u8bfb\u5199\u5904\u7684\u4f4d\u7f6e\uff0c\u5f53\u524d\u8bfb\u5199n\u4e2a\u5b57\u8282\u540e\uff0c\u6587\u4ef6\u6307\u793a\u5668\u5c06\u6307\u5411\u8fd9n\u4e2a\u5b57\u8282\u540e\u9762\u7684\u4e0b\u4e00\u4e2a\u5b57\u8282\u5904\u3002<\/p>\n
              \u521a\u6253\u5f00\u6587\u4ef6\u65f6\uff0c\u6587\u4ef6\u6307\u793a\u5668\u6307\u5411\u6587\u4ef6\u7684\u5f00\u5934\u5904\uff0c\u53ef\u4ee5\u79fb\u52a8\u6587\u4ef6\u6307\u793a\u5668\u5230\u65b0\u7684\u4f4d\u7f6e\uff0c\u968f\u540e\u7684\u8bfb\u5199\u64cd\u4f5c\u5c06\u4ece\u65b0\u7684\u4f4d\u7f6e\u5f00\u59cb\u3002<\/p>\n
              RandomAccessFile<\/code>\u7c7b\u5728\u6570\u636e\u7b49\u957f\u8bb0\u5f55\u683c\u5f0f\u6587\u4ef6\u7684\u968f\u673a\uff08\u76f8\u5bf9\u987a\u5e8f\u800c\u8a00\uff09\u8bfb\u53d6\u65f6\u6709\u5f88\u5927\u7684\u4f18\u52bf\uff0c\u4f46\u8be5\u7c7b\u4ec5\u9650\u4e8e\u64cd\u4f5c\u6587\u4ef6\uff0c\u4e0d\u80fd\u8bbf\u95ee\u5176\u4ed6\u7684I\/O\u8bbe\u5907\uff0c\u5982\u7f51\u7edc\u3001\u5185\u5b58\u6620\u50cf\u7b49\u3002<\/p>\n
              RandomAccessFile<\/code>\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
              <\/span>\/\/\u521b\u5efa\u968f\u673a\u5b58\u50a8\u6587\u4ef6\u6d41\uff0c\u6587\u4ef6\u5c5e\u6027\u7531\u53c2\u6570File\u5bf9\u8c61\u6307\u5b9a<\/span>
              RandomAccessFile(File file ,  String mode)

              \/\/\u521b\u5efa\u968f\u673a\u5b58\u50a8\u6587\u4ef6\u6d41\uff0c\u6587\u4ef6\u540d\u7531\u53c2\u6570name\u6307\u5b9a<\/span>
              RandomAccessFile(String name ,  String mode)
              <\/code><\/pre>\n
              \u8fd9\u4e24\u4e2a\u6784\u9020\u65b9\u6cd5\u5747\u6d89\u53ca\u5230\u4e00\u4e2aString\u7c7b\u578b\u7684\u53c2\u6570mode\uff0c\u5b83\u51b3\u5b9a\u968f\u673a\u5b58\u50a8\u6587\u4ef6\u6d41\u7684\u64cd\u4f5c\u6a21\u5f0f\uff0c\u5176\u4e2dmode\u503c\u53ca\u5bf9\u5e94\u7684\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n
                \n
              • \n
                \u201cr\u201d\uff1a<\/strong> \u4ee5\u53ea\u8bfb\u7684\u65b9\u5f0f\u6253\u5f00\uff0c\u8c03\u7528\u8be5\u5bf9\u8c61\u7684\u4efb\u4f55write\uff08\u5199\uff09\u65b9\u6cd5\u90fd\u4f1a\u5bfc\u81f4IOException\u5f02\u5e38<\/section>\n<\/li>\n
              • \n
                \u201crw\u201d\uff1a<\/strong> \u4ee5\u8bfb\u3001\u5199\u65b9\u5f0f\u6253\u5f00\uff0c\u652f\u6301\u6587\u4ef6\u7684\u8bfb\u53d6\u6216\u5199\u5165\u3002\u82e5\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219\u521b\u5efa\u4e4b\u3002<\/section>\n<\/li>\n
              • \n
                \u201crws\u201d\uff1a<\/strong> \u4ee5\u8bfb\u3001\u5199\u65b9\u5f0f\u6253\u5f00\uff0c\u4e0e\u201crw\u201d\u4e0d\u540c\u7684\u662f\uff0c\u8fd8\u8981\u5bf9\u6587\u4ef6\u5185\u5bb9\u7684\u6bcf\u6b21\u66f4\u65b0\u90fd\u540c\u6b65\u66f4\u65b0\u5230\u6f5c\u5728\u7684\u5b58\u50a8\u8bbe\u5907\u4e2d\u53bb\u3002\u8fd9\u91cc\u7684\u201cs\u201d\u8868\u793asynchronous\uff08\u540c\u6b65\uff09\u7684\u610f\u601d<\/section>\n<\/li>\n
              • \n
                \u201crwd\u201d\uff1a<\/strong> \u4ee5\u8bfb\u3001\u5199\u65b9\u5f0f\u6253\u5f00\uff0c\u4e0e\u201crw\u201d\u4e0d\u540c\u7684\u662f\uff0c\u8fd8\u8981\u5bf9\u6587\u4ef6\u5185\u5bb9\u7684\u6bcf\u6b21\u66f4\u65b0\u90fd\u540c\u6b65\u66f4\u65b0\u5230\u6f5c\u5728\u7684\u5b58\u50a8\u8bbe\u5907\u4e2d\u53bb\u3002\u4f7f\u7528\u201crwd\u201d\u6a21\u5f0f\u4ec5\u8981\u6c42\u5c06\u6587\u4ef6\u7684\u5185\u5bb9\u66f4\u65b0\u5230\u5b58\u50a8\u8bbe\u5907\u4e2d\uff0c\u800c\u4f7f\u7528\u201crws\u201d\u6a21\u5f0f\u9664\u4e86\u66f4\u65b0\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u8fd8\u8981\u66f4\u65b0\u6587\u4ef6\u7684\u5143\u6570\u636e\uff08metadata\uff09\uff0c\u56e0\u6b64\u81f3\u5c11\u8981\u6c421\u6b21\u4f4e\u7ea7\u522b\u7684I\/O\u64cd\u4f5c<\/section>\n<\/li>\n<\/ul>\n
                <\/span>import<\/span> java.io.RandomAccessFile;
                import<\/span> java.nio.charset.StandardCharsets;
                public<\/span> class<\/span> RandomFileTest<\/span> <\/span>{
                    private<\/span> static<\/span> final<\/span> String filePath = \"C:\\Users\\NineSun\\Desktop\\employee.txt\"<\/span>;

                    public<\/span> static<\/span> void<\/span> main<\/span>(String[] args)<\/span> throws<\/span> Exception <\/span>{
                        Employee e1 = new<\/span> Employee(\"zhangsan\"<\/span>, 23<\/span>);
                        Employee e2 = new<\/span> Employee(\"lisi\"<\/span>, 24<\/span>);
                        Employee e3 = new<\/span> Employee(\"wangwu\"<\/span>, 25<\/span>);
                        RandomAccessFile ra = new<\/span> RandomAccessFile(filePath, \"rw\"<\/span>);
                        ra.write(e1.name.getBytes(StandardCharsets.UTF_8));\/\/\u9632\u6b62\u5199\u5165\u6587\u4ef6\u4e71\u7801<\/span>
                        ra.writeInt(e1.age);
                        ra.write(e2.name.getBytes());
                        ra.writeInt(e2.age);
                        ra.write(e3.name.getBytes());
                        ra.writeInt(e3.age);
                        ra.close();
                        RandomAccessFile raf = new<\/span> RandomAccessFile(filePath, \"r\"<\/span>);
                        int<\/span> len = 8<\/span>;
                        raf.skipBytes(12<\/span>);\/\/\u8df3\u8fc7\u7b2c\u4e00\u4e2a\u5458\u5de5\u7684\u4fe1\u606f\uff0c\u5176\u59d3\u540d8\u5b57\u8282\uff0c\u5e74\u9f844\u5b57\u8282<\/span>
                        System.out.println(\"\u7b2c\u4e8c\u4e2a\u5458\u5de5\u4fe1\u606f\uff1a\"<\/span>);
                        String str = \"\"<\/span>;
                        for<\/span> (int<\/span> i = 0<\/span>; i < len; i++) {
                            str = str + (char<\/span>) raf.readByte();
                        }
                        System.out.println(\"name:\"<\/span> + str);
                        System.out.println(\"age:\"<\/span> + raf.readInt());
                        System.out.println(\"\u7b2c\u4e00\u4e2a\u5458\u5de5\u4fe1\u606f\uff1a\"<\/span>);
                        raf.seek(0<\/span>);\/\/\u5c06\u6587\u4ef6\u6307\u9488\u79fb\u52a8\u5230\u6587\u4ef6\u5f00\u59cb\u4f4d\u7f6e<\/span>
                        str = \"\"<\/span>;
                        for<\/span> (int<\/span> i = 0<\/span>; i < len; i++) {
                            str = str + (char<\/span>) raf.readByte();
                        }
                        System.out.println(\"name:\"<\/span> + str);
                        System.out.println(\"age:\"<\/span> + raf.readInt());
                        System.out.println(\"\u7b2c\u4e09\u4e2a\u5458\u5de5\u4fe1\u606f\uff1a\"<\/span>);
                        raf.skipBytes(12<\/span>);\/\/\u8df3\u8fc7\u7b2c\u4e8c\u4e2a\u5458\u5de5\u7684\u4fe1\u606f<\/span>
                        str = \"\"<\/span>;
                        for<\/span> (int<\/span> i = 0<\/span>; i < len; i++) {
                            str = str + (char<\/span>) raf.readByte();
                        }
                        System.out.println(\"name:\"<\/span> + str);
                        System.out.println(\"age:\"<\/span> + raf.readInt());
                        raf.close();
                    }
                }

                class<\/span> Employee<\/span> <\/span>{
                    String name;
                    int<\/span> age;
                    final<\/span> static<\/span> int<\/span> LEN = 8<\/span>;

                    public<\/span> Employee<\/span>(String name, int<\/span> age)<\/span> <\/span>{
                        if<\/span> (name.length() > LEN) {
                            name = name.substring(0<\/span>, 8<\/span>);
                        } else<\/span> {
                            while<\/span> (name.length() < LEN) {
                                name = name + \"u0000\"<\/span>;
                            }
                            this<\/span>.name = name;
                            this<\/span>.age = age;
                        }
                    }
                }
                <\/code><\/pre>\n
                MappedByteBuffer<\/h4>\n
                java io\u64cd\u4f5c\u4e2d\u901a\u5e38\u91c7\u7528BufferedReader<\/code>\uff0cBufferedInputStream<\/code>\u7b49\u5e26\u7f13\u51b2\u7684IO\u7c7b\u5904\u7406\u5927\u6587\u4ef6\uff0c\u4e0d\u8fc7java nio\u4e2d\u5f15\u5165\u4e86\u4e00\u79cd\u57fa\u4e8eMappedByteBuffer<\/code>\u64cd\u4f5c\u5927\u6587\u4ef6\u7684\u65b9\u5f0f\uff0c\u5176\u8bfb\u5199\u6027\u80fd\u6781\u9ad8<\/p>\n
                3.3 \u8fdb\u884c\u5199\u5165\u64cd\u4f5c\u7684\u6838\u5fc3\u4ee3\u7801<\/h3>\n
                \u4e3a\u4e86\u8282\u7ea6\u6587\u7ae0\u7bc7\u5e45\uff0c\u4e0b\u9762\u6211\u53ea\u5c55\u793a\u6838\u5fc3\u4ee3\u7801\uff0c\u5b8c\u6574\u4ee3\u7801\u53ef\u4ee5\u5728\u6587\u672b\u8fdb\u884c\u4e0b\u8f7d<\/p>\n
                RandomAccessFile\u5b9e\u73b0\u65b9\u5f0f<\/h4>\n
                <\/span>@UploadMode<\/span>(mode = UploadModeEnum.RANDOM_ACCESS)
                @Slf<\/span>4j
                public<\/span> class<\/span> RandomAccessUploadStrategy<\/span> extends<\/span> SliceUploadTemplate<\/span> <\/span>{

                  @Autowired<\/span>
                  private<\/span> FilePathUtil filePathUtil;

                  @Value<\/span>(\"${upload.chunkSize}\"<\/span>)
                  private<\/span> long<\/span> defaultChunkSize;

                  @Override<\/span>
                  public<\/span> boolean<\/span> upload<\/span>(FileUploadRequestDTO param)<\/span> <\/span>{
                    RandomAccessFile accessTmpFile = null<\/span>;
                    try<\/span> {
                      String uploadDirPath = filePathUtil.getPath(param);
                      File tmpFile = super<\/span>.createTmpFile(param);
                      accessTmpFile = new<\/span> RandomAccessFile(tmpFile, \"rw\"<\/span>);
                      \/\/\u8fd9\u4e2a\u5fc5\u987b\u4e0e\u524d\u7aef\u8bbe\u5b9a\u7684\u503c\u4e00\u81f4<\/span>
                      long<\/span> chunkSize = Objects.isNull(param.getChunkSize()) ? defaultChunkSize * 1024<\/span> * 1024<\/span>
                          : param.getChunkSize();
                      long<\/span> offset = chunkSize * param.getChunk();
                      \/\/\u5b9a\u4f4d\u5230\u8be5\u5206\u7247\u7684\u504f\u79fb\u91cf<\/span>
                      accessTmpFile.seek(offset);
                      \/\/\u5199\u5165\u8be5\u5206\u7247\u6570\u636e<\/span>
                      accessTmpFile.write(param.getFile().getBytes());
                      boolean<\/span> isOk = super<\/span>.checkAndSetUploadProgress(param, uploadDirPath);
                      return<\/span> isOk;
                    } catch<\/span> (IOException e) {
                      log.error(e.getMessage(), e);
                    } finally<\/span> {
                      FileUtil.close(accessTmpFile);
                    }


                    return<\/span> false<\/span>;
                  }
                }
                <\/code><\/pre>\n
                MappedByteBuffer\u5b9e\u73b0\u65b9\u5f0f<\/h4>\n
                <\/span>@UploadMode<\/span>(mode = UploadModeEnum.MAPPED_BYTEBUFFER)
                @Slf<\/span>4j
                public<\/span> class<\/span> MappedByteBufferUploadStrategy<\/span> extends<\/span> SliceUploadTemplate<\/span> <\/span>{

                  @Autowired<\/span>
                  private<\/span> FilePathUtil filePathUtil;

                  @Value<\/span>(\"${upload.chunkSize}\"<\/span>)
                  private<\/span> long<\/span> defaultChunkSize;

                  @Override<\/span>
                  public<\/span> boolean<\/span> upload<\/span>(FileUploadRequestDTO param)<\/span> <\/span>{

                    RandomAccessFile tempRaf = null<\/span>;
                    FileChannel fileChannel = null<\/span>;
                    MappedByteBuffer mappedByteBuffer = null<\/span>;
                    try<\/span> {
                      String uploadDirPath = filePathUtil.getPath(param);
                      File tmpFile = super<\/span>.createTmpFile(param);
                      tempRaf = new<\/span> RandomAccessFile(tmpFile, \"rw\"<\/span>);
                      fileChannel = tempRaf.getChannel();

                      long<\/span> chunkSize = Objects.isNull(param.getChunkSize()) ? defaultChunkSize * 1024<\/span> * 1024<\/span>
                          : param.getChunkSize();
                      \/\/\u5199\u5165\u8be5\u5206\u7247\u6570\u636e<\/span>
                      long<\/span> offset = chunkSize * param.getChunk();
                      byte<\/span>[] fileData = param.getFile().getBytes();
                      mappedByteBuffer = fileChannel
                          .map(FileChannel.MapMode.READ_WRITE, offset, fileData.length);
                      mappedByteBuffer.put(fileData);
                      boolean<\/span> isOk = super<\/span>.checkAndSetUploadProgress(param, uploadDirPath);
                      return<\/span> isOk;

                    } catch<\/span> (IOException e) {
                      log.error(e.getMessage(), e);
                    } finally<\/span> {

                      FileUtil.freedMappedByteBuffer(mappedByteBuffer);
                      FileUtil.close(fileChannel);
                      FileUtil.close(tempRaf);

                    }

                    return<\/span> false<\/span>;
                  }

                }
                <\/code><\/pre>\n
                \u6587\u4ef6\u64cd\u4f5c\u6838\u5fc3\u6a21\u677f\u7c7b\u4ee3\u7801<\/h4>\n
                <\/span>@Slf<\/span>4j
                public<\/span> abstract<\/span> class<\/span> SliceUploadTemplate<\/span> implements<\/span> SliceUploadStrategy<\/span> <\/span>{

                  public<\/span> abstract<\/span> boolean<\/span> upload<\/span>(FileUploadRequestDTO param)<\/span><\/span>;

                  protected<\/span> File createTmpFile<\/span>(FileUploadRequestDTO param)<\/span> <\/span>{

                    FilePathUtil filePathUtil = SpringContextHolder.getBean(FilePathUtil.class<\/span>)<\/span>;
                    param.setPath(FileUtil.withoutHeadAndTailDiagonal(param.getPath()));
                    String fileName = param.getFile().getOriginalFilename();
                    String uploadDirPath = filePathUtil.getPath(param);
                    String tempFileName = fileName + \"_tmp\"<\/span>;
                    File tmpDir = new<\/span> File(uploadDirPath);
                    File tmpFile = new<\/span> File(uploadDirPath, tempFileName);
                    if<\/span> (!tmpDir.exists()) {
                      tmpDir.mkdirs();
                    }
                    return<\/span> tmpFile;
                  }

                  @Override<\/span>
                  public<\/span> FileUploadDTO sliceUpload<\/span>(FileUploadRequestDTO param)<\/span> <\/span>{

                    boolean<\/span> isOk = this<\/span>.upload(param);
                    if<\/span> (isOk) {
                      File tmpFile = this<\/span>.createTmpFile(param);
                      FileUploadDTO fileUploadDTO = this<\/span>.saveAndFileUploadDTO(param.getFile().getOriginalFilename(), tmpFile);
                      return<\/span> fileUploadDTO;
                    }
                    String md5 = FileMD5Util.getFileMD5(param.getFile());

                    Map<Integer, String> map = new<\/span> HashMap<>();
                    map.put(param.getChunk(), md5);
                    return<\/span> FileUploadDTO.builder().chunkMd5Info(map).build();
                  }

                  \/**
                   * \u68c0\u67e5\u5e76\u4fee\u6539\u6587\u4ef6\u4e0a\u4f20\u8fdb\u5ea6
                   *\/<\/span>
                  public<\/span> boolean<\/span> checkAndSetUploadProgress<\/span>(FileUploadRequestDTO param, String uploadDirPath)<\/span> <\/span>{

                    String fileName = param.getFile().getOriginalFilename();
                    File confFile = new<\/span> File(uploadDirPath, fileName + \".conf\"<\/span>);
                    byte<\/span> isComplete = 0<\/span>;
                    RandomAccessFile accessConfFile = null<\/span>;
                    try<\/span> {
                      accessConfFile = new<\/span> RandomAccessFile(confFile, \"rw\"<\/span>);
                      \/\/\u628a\u8be5\u5206\u6bb5\u6807\u8bb0\u4e3a true \u8868\u793a\u5b8c\u6210<\/span>
                      System.out.println(\"set part \"<\/span> + param.getChunk() + \" complete\"<\/span>);
                      \/\/\u521b\u5efaconf\u6587\u4ef6\u6587\u4ef6\u957f\u5ea6\u4e3a\u603b\u5206\u7247\u6570\uff0c\u6bcf\u4e0a\u4f20\u4e00\u4e2a\u5206\u5757\u5373\u5411conf\u6587\u4ef6\u4e2d\u5199\u5165\u4e00\u4e2a127\uff0c\u90a3\u4e48\u6ca1\u4e0a\u4f20\u7684\u4f4d\u7f6e\u5c31\u662f\u9ed8\u8ba40,\u5df2\u4e0a\u4f20\u7684\u5c31\u662fByte.MAX_VALUE 127<\/span>
                      accessConfFile.setLength(param.getChunks());
                      accessConfFile.seek(param.getChunk());
                      accessConfFile.write(Byte.MAX_VALUE);

                      \/\/completeList \u68c0\u67e5\u662f\u5426\u5168\u90e8\u5b8c\u6210,\u5982\u679c\u6570\u7ec4\u91cc\u662f\u5426\u5168\u90e8\u90fd\u662f127(\u5168\u90e8\u5206\u7247\u90fd\u6210\u529f\u4e0a\u4f20)<\/span>
                      byte<\/span>[] completeList = FileUtils.readFileToByteArray(confFile);
                      isComplete = Byte.MAX_VALUE;
                      for<\/span> (int<\/span> i = 0<\/span>; i < completeList.length && isComplete == Byte.MAX_VALUE; i++) {
                        \/\/\u4e0e\u8fd0\u7b97, \u5982\u679c\u6709\u90e8\u5206\u6ca1\u6709\u5b8c\u6210\u5219 isComplete \u4e0d\u662f Byte.MAX_VALUE<\/span>
                        isComplete = (byte<\/span>) (isComplete & completeList[i]);
                        System.out.println(\"check part \"<\/span> + i + \" complete?:\"<\/span> + completeList[i]);
                      }

                    } catch<\/span> (IOException e) {
                      log.error(e.getMessage(), e);
                    } finally<\/span> {
                      FileUtil.close(accessConfFile);
                    }
                    boolean<\/span> isOk = setUploadProgress2Redis(param, uploadDirPath, fileName, confFile, isComplete);
                    return<\/span> isOk;
                  }

                  \/**
                   * \u628a\u4e0a\u4f20\u8fdb\u5ea6\u4fe1\u606f\u5b58\u8fdbredis
                   *\/<\/span>
                  private<\/span> boolean<\/span> setUploadProgress2Redis<\/span>(FileUploadRequestDTO param, String uploadDirPath,
                      String fileName, File confFile, byte<\/span> isComplete)<\/span> <\/span>{

                    RedisUtil redisUtil = SpringContextHolder.getBean(RedisUtil.class<\/span>)<\/span>;
                    if<\/span> (isComplete == Byte.MAX_VALUE) {
                      redisUtil.hset(FileConstant.FILE_UPLOAD_STATUS, param.getMd5(), \"true\"<\/span>);
                      redisUtil.del(FileConstant.FILE_MD5_KEY + param.getMd5());
                      confFile.delete();
                      return<\/span> true<\/span>;
                    } else<\/span> {
                      if<\/span> (!redisUtil.hHasKey(FileConstant.FILE_UPLOAD_STATUS, param.getMd5())) {
                        redisUtil.hset(FileConstant.FILE_UPLOAD_STATUS, param.getMd5(), \"false\"<\/span>);
                        redisUtil.set(FileConstant.FILE_MD5_KEY + param.getMd5(),
                            uploadDirPath + FileConstant.FILE_SEPARATORCHAR + fileName + \".conf\"<\/span>);
                      }

                      return<\/span> false<\/span>;
                    }
                  }

                  \/**
                   * \u4fdd\u5b58\u6587\u4ef6\u64cd\u4f5c
                   *\/<\/span>
                  public<\/span> FileUploadDTO saveAndFileUploadDTO<\/span>(String fileName, File tmpFile)<\/span> <\/span>{

                    FileUploadDTO fileUploadDTO = null<\/span>;

                    try<\/span> {

                      fileUploadDTO = renameFile(tmpFile, fileName);
                      if<\/span> (fileUploadDTO.isUploadComplete()) {
                        System.out
                            .println(\"upload complete !!\"<\/span> + fileUploadDTO.isUploadComplete() + \" name=\"<\/span> + fileName);
                        \/\/TODO \u4fdd\u5b58\u6587\u4ef6\u4fe1\u606f\u5230\u6570\u636e\u5e93<\/span>

                      }

                    } catch<\/span> (Exception e) {
                      log.error(e.getMessage(), e);
                    } finally<\/span> {

                    }
                    return<\/span> fileUploadDTO;
                  }

                  \/**
                   * \u6587\u4ef6\u91cd\u547d\u540d
                   *
                   * @param<\/span> toBeRenamed \u5c06\u8981\u4fee\u6539\u540d\u5b57\u7684\u6587\u4ef6
                   * @param<\/span> toFileNewName \u65b0\u7684\u540d\u5b57
                   *\/<\/span>
                  private<\/span> FileUploadDTO renameFile<\/span>(File toBeRenamed, String toFileNewName)<\/span> <\/span>{
                    \/\/\u68c0\u67e5\u8981\u91cd\u547d\u540d\u7684\u6587\u4ef6\u662f\u5426\u5b58\u5728\uff0c\u662f\u5426\u662f\u6587\u4ef6<\/span>
                    FileUploadDTO fileUploadDTO = new<\/span> FileUploadDTO();
                    if<\/span> (!toBeRenamed.exists() || toBeRenamed.isDirectory()) {
                      log.info(\"File does not exist: {}\"<\/span>, toBeRenamed.getName());
                      fileUploadDTO.setUploadComplete(false<\/span>);
                      return<\/span> fileUploadDTO;
                    }
                    String ext = FileUtil.getExtension(toFileNewName);
                    String p = toBeRenamed.getParent();
                    String filePath = p + FileConstant.FILE_SEPARATORCHAR + toFileNewName;
                    File newFile = new<\/span> File(filePath);
                    \/\/\u4fee\u6539\u6587\u4ef6\u540d<\/span>
                    boolean<\/span> uploadFlag = toBeRenamed.renameTo(newFile);

                    fileUploadDTO.setMtime(DateUtil.getCurrentTimeStamp());
                    fileUploadDTO.setUploadComplete(uploadFlag);
                    fileUploadDTO.setPath(filePath);
                    fileUploadDTO.setSize(newFile.length());
                    fileUploadDTO.setFileExt(ext);
                    fileUploadDTO.setFileId(toFileNewName);

                    return<\/span> fileUploadDTO;
                  }

                }
                <\/code><\/pre>\n
                \u4e0a\u4f20\u63a5\u53e3<\/h4>\n
                <\/span>  @PostMapping<\/span>(value = \"\/upload\"<\/span>)
                  @ResponseBody<\/span>
                  public<\/span> Result<FileUploadDTO> upload<\/span>(FileUploadRequestDTO fileUploadRequestDTO)<\/span> throws<\/span> IOException <\/span>{

                    boolean<\/span> isMultipart = ServletFileUpload.isMultipartContent(request);
                    FileUploadDTO fileUploadDTO = null<\/span>;
                    if<\/span> (isMultipart) {

                      StopWatch stopWatch = new<\/span> StopWatch();
                      stopWatch.start(\"upload\"<\/span>);
                      if<\/span> (fileUploadRequestDTO.getChunk() != null<\/span> && fileUploadRequestDTO.getChunks() > 0<\/span>) {
                        fileUploadDTO = fileService.sliceUpload(fileUploadRequestDTO);
                      } else<\/span> {
                        fileUploadDTO = fileService.upload(fileUploadRequestDTO);
                      }
                      stopWatch.stop();
                      log.info(\"{}\"<\/span>,stopWatch.prettyPrint());

                      return<\/span> new<\/span> Result<FileUploadDTO>().setData(fileUploadDTO);
                    }

                    throw<\/span> new<\/span> BizException(\"\u4e0a\u4f20\u5931\u8d25\"<\/span>, 406<\/span>);

                  }
                <\/code><\/pre>\n
                4.\u79d2\u4f20<\/h2>\n
                4.1 \u4ec0\u4e48\u662f\u79d2\u4f20<\/h3>\n
                \u901a\u4fd7\u7684\u8bf4\uff0c\u4f60\u628a\u8981\u4e0a\u4f20\u7684\u4e1c\u897f\u4e0a\u4f20\uff0c\u670d\u52a1\u5668\u4f1a\u5148\u505aMD5\u6821\u9a8c\uff0c\u5982\u679c\u670d\u52a1\u5668\u4e0a\u6709\u4e00\u6837\u7684\u4e1c\u897f\uff0c\u5b83\u5c31\u76f4\u63a5\u7ed9\u4f60\u4e2a\u65b0\u5730\u5740\uff0c\u5176\u5b9e\u4f60\u4e0b\u8f7d\u7684\u90fd\u662f\u670d\u52a1\u5668\u4e0a\u7684\u540c\u4e00\u4e2a\u6587\u4ef6\uff0c\u60f3\u8981\u4e0d\u79d2\u4f20\uff0c\u5176\u5b9e\u53ea\u8981\u8ba9MD5\u6539\u53d8\uff0c\u5c31\u662f\u5bf9\u6587\u4ef6\u672c\u8eab\u505a\u4e00\u4e0b\u4fee\u6539\uff08\u6539\u540d\u5b57\u4e0d\u884c\uff09\uff0c\u4f8b\u5982\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\uff0c\u4f60\u591a\u52a0\u51e0\u4e2a\u5b57\uff0cMD5\u5c31\u53d8\u4e86\uff0c\u5c31\u4e0d\u4f1a\u79d2\u4f20\u4e86\u3002<\/p>\n
                4.2 \u5b9e\u73b0\u7684\u79d2\u4f20\u6838\u5fc3\u903b\u8f91<\/h3>\n
                \u5229\u7528redis\u7684set\u65b9\u6cd5\u5b58\u653e\u6587\u4ef6\u4e0a\u4f20\u72b6\u6001\uff0c\u5176\u4e2dkey\u4e3a\u6587\u4ef6\u4e0a\u4f20\u7684md5\uff0cvalue\u4e3a\u662f\u5426\u4e0a\u4f20\u5b8c\u6210\u7684\u6807\u5fd7\u4f4d\uff0c<\/p>\n
                \u5f53\u6807\u5fd7\u4f4dtrue\u4e3a\u4e0a\u4f20\u5df2\u7ecf\u5b8c\u6210\uff0c\u6b64\u65f6\u5982\u679c\u6709\u76f8\u540c\u6587\u4ef6\u4e0a\u4f20\uff0c\u5219\u8fdb\u5165\u79d2\u4f20\u903b\u8f91\u3002<\/p>\n
                \u5982\u679c\u6807\u5fd7\u4f4d\u4e3afalse\uff0c\u5219\u8bf4\u660e\u8fd8\u6ca1\u4e0a\u4f20\u5b8c\u6210\uff0c\u6b64\u65f6\u9700\u8981\u5728\u8c03\u7528set\u7684\u65b9\u6cd5\uff0c\u4fdd\u5b58\u5757\u53f7\u6587\u4ef6\u8bb0\u5f55\u7684\u8def\u5f84\uff0c\u5176\u4e2d<\/p>\n
                  \n
                • \n
                  key\u4e3a\u4e0a\u4f20\u6587\u4ef6md5\u52a0\u4e00\u4e2a\u56fa\u5b9a\u524d\u7f00<\/section>\n<\/li>\n
                • \n
                  value\u4e3a\u5757\u53f7\u6587\u4ef6\u8bb0\u5f55\u8def\u5f84<\/section>\n<\/li>\n<\/ul>\n
                  4.3 \u6838\u5fc3\u4ee3\u7801<\/h3>\n
                  <\/span>private<\/span> boolean<\/span> setUploadProgress2Redis<\/span>(FileUploadRequestDTO param, String uploadDirPath,
                        String fileName, File confFile, byte<\/span> isComplete)<\/span> <\/span>{

                      RedisUtil redisUtil = SpringContextHolder.getBean(RedisUtil.class<\/span>)<\/span>;
                      if<\/span> (isComplete == Byte.MAX_VALUE) {
                        redisUtil.hset(FileConstant.FILE_UPLOAD_STATUS, param.getMd5(), \"true\"<\/span>);
                        redisUtil.del(FileConstant.FILE_MD5_KEY + param.getMd5());
                        confFile.delete();
                        return<\/span> true<\/span>;
                      } else<\/span> {
                        if<\/span> (!redisUtil.hHasKey(FileConstant.FILE_UPLOAD_STATUS, param.getMd5())) {
                          redisUtil.hset(FileConstant.FILE_UPLOAD_STATUS, param.getMd5(), \"false\"<\/span>);
                          redisUtil.set(FileConstant.FILE_MD5_KEY + param.getMd5(),
                              uploadDirPath + FileConstant.FILE_SEPARATORCHAR + fileName + \".conf\"<\/span>);
                        }

                        return<\/span> false<\/span>;
                      }
                    }
                  <\/code><\/pre>\n
                  5.\u603b\u7ed3<\/h2>\n
                  \u5728\u5b9e\u73b0\u5206\u7247\u4e0a\u4f20\u7684\u8fc7\u7a0b\uff0c\u9700\u8981\u524d\u7aef\u548c\u540e\u7aef\u914d\u5408\uff0c\u6bd4\u5982\u524d\u540e\u7aef\u7684\u4e0a\u4f20\u5757\u53f7\u7684\u6587\u4ef6\u5927\u5c0f\uff0c\u524d\u540e\u7aef\u5fc5\u987b\u5f97\u8981\u4e00\u81f4\uff0c\u5426\u5219\u4e0a\u4f20\u5c31\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n
                  \u5176\u6b21\u6587\u4ef6\u76f8\u5173\u64cd\u4f5c\u6b63\u5e38\u90fd\u662f\u8981\u642d\u5efa\u4e00\u4e2a\u6587\u4ef6\u670d\u52a1\u5668\u7684\uff0c\u6bd4\u5982\u4f7f\u7528fastdfs\u3001hdfs\u7b49\u3002<\/p>\n
                  \u5982\u679c\u9879\u76ee\u7ec4\u89c9\u5f97\u81ea\u5efa\u6587\u4ef6\u670d\u52a1\u5668\u592a\u82b1\u8d39\u65f6\u95f4\uff0c\u4e14\u9879\u76ee\u7684\u9700\u6c42\u4ec5\u4ec5\u53ea\u662f\u4e0a\u4f20\u4e0b\u8f7d\uff0c\u90a3\u4e48\u63a8\u8350\u4f7f\u7528\u963f\u91cc\u7684oss\u670d\u52a1\u5668\uff0c\u5176\u4ecb\u7ecd\u53ef\u4ee5\u67e5\u770b\u5b98\u7f51:<\/p>\n
                    \n
                  • \n
                    https:\/\/help.aliyun.com\/product\/31815.html<\/section>\n<\/li>\n<\/ul>\n
                    \u963f\u91cc\u7684oss\u5b83\u672c\u8d28\u662f\u4e00\u4e2a\u5bf9\u8c61\u5b58\u50a8\u670d\u52a1\u5668\uff0c\u800c\u975e\u6587\u4ef6\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u5982\u679c\u6709\u6d89\u53ca\u5230\u5927\u91cf\u5220\u9664\u6216\u8005\u4fee\u6539\u6587\u4ef6\u7684\u9700\u6c42\uff0coss\u53ef\u80fd\u5c31\u4e0d\u662f\u4e00\u4e2a\u597d\u7684\u9009\u62e9\u3002<\/p>\n
                    \u9879\u76ee\u5730\u5740\uff1a<\/h5>\n
                      \n
                    • \n
                      https:\/\/gitee.com\/ninesuntec\/large-file-upload<\/section>\n<\/li>\n<\/ul>\n
                      <\/mp-common-profile><\/section>\n
                      \u5982\u559c\u6b22\u672c\u6587\uff0c\u8bf7\u70b9\u51fb\u53f3\u4e0a\u89d2\uff0c\u628a\u6587\u7ae0\u5206\u4eab\u5230\u670b\u53cb\u5708<\/span>
                      <\/span><\/p>
                      \u56e0\u516c\u4f17\u53f7\u66f4\u6539\u63a8\u9001\u89c4\u5219\uff0c\u8bf7\u70b9\u201c\u5728\u770b\u201d\u5e76\u52a0\u201c\u661f\u6807\u201d\u7b2c\u4e00\u65f6\u95f4\u83b7\u53d6\u7cbe\u5f69\u6280\u672f\u5206\u4eab<\/span><\/span><\/strong><\/p>
                      \u00b7END\u00b7<\/strong><\/p><\/pre>\n
                      <\/mp-style-type><\/p>\n
                      \n
                      \u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 IT\u725b\u5ba2              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
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